How much work is done by a 120N force applied to a box that moves 5m?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

What is a carrier wave and how does it affect what you hear on the radio